US5830907A - Application of riluzole in the treatment of neurological lesions associated with trauma - Google Patents

Application of riluzole in the treatment of neurological lesions associated with trauma Download PDF

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Publication number
US5830907A
US5830907A US08/424,529 US42452995A US5830907A US 5830907 A US5830907 A US 5830907A US 42452995 A US42452995 A US 42452995A US 5830907 A US5830907 A US 5830907A
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US
United States
Prior art keywords
trauma
riluzole
treatment
neurological lesions
application
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/424,529
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English (en)
Inventor
Adam Doble
Erik Louvel
Jeremy Pratt
Jean-Marie Stutzmann
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Covis Pharma GmbH
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Rhone Poulenc Rorer SA
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Assigned to RHONE-POULENC RORER S.A. reassignment RHONE-POULENC RORER S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOBLE, ADAM, LOUVEL, ERIK, PRATT, JEREMY, STUTZMANN, JEAN-MARIE
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Publication of US5830907A publication Critical patent/US5830907A/en
Assigned to AVENTIS PHARMA S.A. reassignment AVENTIS PHARMA S.A. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: RHONE-POULENC RORER S.A.
Assigned to CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT reassignment CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: COVIS PHARMA HOLDINGS S.A.R.L., COVIS PHARMA S.A.R.L.
Assigned to COVIS PHARMA S.A.R.L. reassignment COVIS PHARMA S.A.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AVENTIS PHARMA S.A.
Assigned to COVIS PHARMA S.A.R.L., COVIS PHARMA HOLDINGS S.A.R. L. reassignment COVIS PHARMA S.A.R.L. RELEASE OF PATENT SECURITY INTEREST Assignors: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/425—Thiazoles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/53—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with three nitrogens as the only ring hetero atoms, e.g. chlorazanil, melamine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/55—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/08—Antiepileptics; Anticonvulsants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia

Definitions

  • the present invention relates to a novel therapeutic application of riluzole or the pharmaceutically acceptable salts of this compound.
  • Riluzole is known to be useful as an anticonvulsant, anxiolytic and hypnotic medicinal product (Patent EP 50,551), in the treatment of schizophrenia (EP 305,276), in the treatment of sleep disorders and depression (EP 305,277), in the treatment of cerebrovascular disorders and as an anesthetic (EP 282,971).
  • this compound may also be used in the treatment of neurological lesions associated with trauma, and especially with spinal, cranial or craniospinal trauma.
  • riluzole decreases the animals' neurological deficit (paraplegia) associated with lesion of the spinal cord as well as histopathological lesions (necrosis of the cord). This decrease is generally equal to or greater than 5%.
  • a) preparation of animals rabbits are injected intramuscularly with 5 mg of valium® and 1/16 mg of atropine. 30 minutes later, an isotonic saline perfusion is instituted and the rabbits are anesthetized by slow intravenous injection of 40 mg/kg of Nesdonal®. A cardioscope is installed, since the animal may display a lasting apnoea with bradycardia, particularly on reinjection of Nesdonal®.
  • SEP somatosensory evoked potentials
  • trauma is produced by inflating the balloon of a Fogarty French 3 probe placed in the spinal canal in an extradural position. To this end, a lower lumbar laminectomy is carried out. Opening of the yellow ligament enables the probe to be inserted up to the level of the first lumbar vertebra, and the operating wound is closed up. A further SEP is recorded to check for the absence of functional lesion during insertion of the probe. The lesion is then produced by inflating the balloon with variable amounts of air (0.2, 0.4 and 0.55 ml of air), and the probe is thereafter withdrawn. A further SEP measurement is carried out immediately after the trauma and is compared (amplitudes and latencies) with the reference SEP.
  • the products are injected intraperitoneally once daily for 5 days, at doses of between 1 and 8 mg/kg.
  • histology a spine/cord block that includes the damaged level is removed and placed in 10% formalin. One week later, the cord is extracted from the block (this fixing time appears to be necessary in order to avoid a post-mortem lesion). A haemorrhagic area visible to the naked eye shows the level of the trauma. Serial histological sections specify the extent of the lesions.
  • riluzole enables the neurological deficit associated with lesion of the spinal cord to be decreased, the sensory neurological pathways to be protected and the haemorrhagic necrotic area within the grey matter of the spinal cord to be decreased. These decreases are generally equal to or greater than 5%.
  • riluzole improves the neurological score of animals which have undergone a cranial trauma and reduces the necrotic lesions. This decrease is generally equal to or greater than 5%.
  • the addition salts with inorganic acids such as hydrochloride, sulphate, nitrate or phosphate, or organic acids, such as acetate, propionate, succinate, oxalate, benzoate, fumarate, maleate, methanesulphonate, isethionate, theophyllineacetate, salicylate, phenolphthalinate or methylenebis( ⁇ -hydroxynaphthoate), or substitution derivatives of these derivatives, may be mentioned in particular.
  • inorganic acids such as hydrochloride, sulphate, nitrate or phosphate
  • organic acids such as acetate, propionate, succinate, oxalate, benzoate, fumarate, maleate, methanesulphonate, isethionate, theophyllineacetate, salicylate, phenolphthalinate or methylenebis( ⁇ -hydroxynaphthoate), or substitution derivatives of these derivatives, may be mentioned in particular.
  • the medicinal products consist at least of riluzole, in free form or in the form of an addition salt with a pharmaceutically acceptable acid, in the pure state or in the form of a composition in which it is combined with any other pharmaceutically compatible product, which may be inert or physiologically active.
  • the medicinal products according to the invention may be employed orally or parenterally.
  • compositions for oral administration tablets, pills, powders (gelatin capsules, wafer capsules) or granules may be used.
  • the active principle according to the invention is mixed with one or more inert diluents such as starch, cellulose, sucrose, lactose or silica, under a stream of argon.
  • these compositions can also comprise substances other than diluents, for example one or more lubricants such as magnesium stearate or talc, a coloring, a coating (dragees) or a varnish.
  • compositions for oral administration pharmaceutically acceptable solutions, suspensions, emulsions, syrups and elixirs may be used, containing inert diluents such as water, ethanol, glycerol, vegetable oils or liquid paraffin.
  • inert diluents such as water, ethanol, glycerol, vegetable oils or liquid paraffin.
  • These compositions can comprise substances other than diluents, for example wetting, sweetening, thickening, flavoring or stabilizing products.
  • the sterile compositions for parenteral administration can preferably be solutions, aqueous or non-aqueous, suspensions or emulsions.
  • a solvent or vehicle water, propylene glycol, a polyethylene glycol, vegetable oils, especially olive oil, injectable organic esters, for example ethyl oleate, or other suitable organic solvents may be employed.
  • These compositions can also contain adjuvants, especially wetting, tonicity, emulsifying, dispersing and stabilizing agents.
  • the sterilization may be carried out in several ways, for example by aseptic filtration, by incorporation of sterilizing agents in the composition, by irradiation or by heating. They may also be prepared in the form of sterile solid compositions which can be dissolved at the time of use in sterile water or any other sterile injectable medium.
  • the doses depend on the effect sought, the treatment period and the administration route used; they are generally between 50 and 800 mg per day via the oral route for an adult, with single doses ranging from 25 to 200 mg of active substance, and between 25 and 600 mg per day via the intravenous route for an adult, with single doses ranging from 12.5 to 200 mg of active substance.
  • the doctor will determine the appropriate dosage in accordance with the age, the weight and all other factors specific to the subject to be treated.
  • Tablets containing a 50 mg dose of active product and having the following composition are prepared according to the usual technique:
  • Hard gelatin capsules containing a 50 mg dose of active product and having the following composition are prepared according to the usual technique:
  • the invention also relates to the process for preparing medicinal products which can be used in the treatment of neurological lesions associated with trauma, and especially with spinal, cranial or craniospinal trauma, consisting in mixing riluzole or the pharmaceutically acceptable salts of this compound with one or more compatible and pharmaceutically acceptable diluents and/or adjuvants.
  • the invention also relates to a method for treating a mammal, and in particular man, having neurological lesions associated with trauma, and especially with spinal, cranial or craniospinal trauma, comprising the administration of an effective amount of riluzole or the pharmaceutically acceptable salts of this compound.

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  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Epidemiology (AREA)
  • Neurosurgery (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Hospice & Palliative Care (AREA)
  • Psychiatry (AREA)
  • Pain & Pain Management (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Peptides Or Proteins (AREA)
  • Saccharide Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Hydrogenated Pyridines (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Medicinal Preparation (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
US08/424,529 1992-12-16 1993-12-10 Application of riluzole in the treatment of neurological lesions associated with trauma Expired - Lifetime US5830907A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9215148A FR2699077B1 (fr) 1992-12-16 1992-12-16 Application d'anticonvulsivants dans le traitement de lésions neurologiques liées à des traumatismes.
FR9215148 1992-12-16
PCT/FR1993/001229 WO1994013288A1 (fr) 1992-12-16 1993-12-10 Application du riluzole dans le traitement de lesions neurologiques liees a des traumatismes

Publications (1)

Publication Number Publication Date
US5830907A true US5830907A (en) 1998-11-03

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US08/424,529 Expired - Lifetime US5830907A (en) 1992-12-16 1993-12-10 Application of riluzole in the treatment of neurological lesions associated with trauma

Country Status (23)

Country Link
US (1) US5830907A (fr)
EP (3) EP0674512B1 (fr)
JP (3) JP3712239B2 (fr)
KR (3) KR100298808B1 (fr)
AT (1) ATE164067T1 (fr)
AU (3) AU678795B2 (fr)
CA (3) CA2151604C (fr)
CZ (3) CZ154795A3 (fr)
DE (1) DE69317578T2 (fr)
DK (1) DK0674512T3 (fr)
ES (1) ES2113635T3 (fr)
FR (1) FR2699077B1 (fr)
GR (1) GR3026403T3 (fr)
HU (3) HUT71812A (fr)
IL (3) IL108051A (fr)
MX (3) MX9307883A (fr)
NO (3) NO952229L (fr)
PL (3) PL309348A1 (fr)
RU (1) RU2142800C1 (fr)
SK (3) SK78595A3 (fr)
UA (1) UA41906C2 (fr)
WO (3) WO1994013288A1 (fr)
ZA (3) ZA939399B (fr)

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